Building siding unit with interlocking backing board and outer panel

ABSTRACT

A siding unit for a building or like structure which includes an outer panel and a backing board. The outer panel of the siding unit includes a hook-shaped butt portion which is adapted to interlock with the siding unit in the lower adjacent siding course. The outer panel also includes a rearwardly extending downturned hook part at its upper marginal portion which is fitted over and interlocks with a lip formed in the upper marginal portion of the backing board located at the back of the outer panel.

United States Patent 1191 Mattes 1*Dec. 25, 1973 [54] BUILDING SIDINGUNIT WITH 3,158,960 12/1964 Newton CI 211. 52/522 INTERLOCKING BACKINGBOARD AND 2,438,099 3/1948 Whitehouse 52/550 2.264.546 12/1941 Ochs 1 I52/529 OUTER PANEL 3,520,099 7/1970 Muttes 52/531 [75] Inventor: LeeHerbert Mattes, South Bend, .380.215 4/1968 Schaefer et 522/549 ind.2.292984 8/1942 Alvarez 52/546 2,820,257 1/1958 Newton... 52/530 1Assignee: Mastic p n, South Bend, 1.963.583 6/1934 Jenkins 52/556FOREIGN PATENTS OR APPLICATIONS l l Noticel The Portion Ofthe termOfthis 643,327 6/1960 Canada 52/519 patent subsequent to Nov. 28, 1989,has been disclaimed- Primary Examiner-Frank L. Abbott [22] Filed: No 9,1971 Assistant ExaminerLeslie A. Braun Attorney-Oltsch & Knoblock [2]]Appl. No.: 197,031

[57] ABSTRACT [52] US. Cl 52/550, 52/531, 52/542, A ing nit f r abuilding or like structure which in- 52/549 cludes an outer panel and abacking board. The outer [51] Int. Cl. E04b 2/08, E04c 2/46 p ne f h iing unit includes a hook-shaped butt [58] Field of Search 52/542, 519,543, portion which is adapted to interlock with the siding 52/544-547,549, 550, 530, 531,536, 529, unit in the lower adjacent siding course.The outer 520, 522 panel also includes a rearwardly extending downturnedhook part at its upper marginal portion which [56] Referen e Cited isfitted over and interlocks with a lip formed in the UNITED STATESPATENTS upper marginal portion of the backing board located 3,703,79511/1972 Mattes 52/521 at the back of the Outer panel 3.48S,004 12/1969Mattes 52/520 3 Claims, 2 Drawing Figures 2O 40 4 2 I /s 5 v I) o 5 wdBUILDING SIDING UNIT WITH INTERLOCKING BACKING BOARD AND OUTER PANELSUMMARY OF THE INVENTION This invention relates to a siding unit for abuilding or like structure.

The siding unit of this invention comprises an outer panel and a backingboard. The outer panel includes an upper marginal portion having arearwardly extending downtumed hook part and a butt portion formed atthe lower edge of the panel. The butt portion includes an upturned lipwhich interlocks with the outer panel of the siding unit in the loweradjacent course. The backing board has an upper edge which is of areduced thickness to define a generally vertical lip. The backing boardis positioned and secured against the building structure 'with the loweredge of the board resting upon the outer panel of the siding unit in thelower adjacent siding course. The outer panel of the siding unit isinterlocked at its butt portion with the outer panel of the siding unitin the lower adjacent siding course and swung upwardly and rearwardlyagainst the backing board with the hook part of the panel at its uppermarginal portion being snapped over and interlocked with the lip at theupper edge of the backing board. In this manner, the outer panel ismounted to the building structure without the aid of staples, nails orthe outer panel or the backing board of the siding unit in the nextupper adjacent siding course. The siding units of this invention be besimply and rapidly applied to a building structure by one workman, evenin inclement, windy weather.

Accordingly, it is an object of this invention to provide a siding unitfor a building or like structure which can be applied by one workman ina simple and rapid manner.

It is another object of this invention to provide a siding unit for abuilding or like structure which is of economical construction and whichcan be applied in a simple and rapid manner on inclement and windy daysas well as in pleasant weather.

It is a further object of this invention to provide a building sidingunit comprising an outer panel and a backing board and in which only thebacking board is fixedly'secured to the underlying building structure.

Still another object of this invention is to provide a method forattaching siding units to a building structure in which only the backingboards of the units are secured to the structure and the outer panels ofthe units are slidable relative to their respective backing boards andto each other.

Other objects of this invention will become apparent upon a reading ofthe inventions description.

BRIEF DESCRIPTION OF THE DRAWINGS A preferred embodiment of thisinvention has been chosen for purposes of illustration and descriptionwherein:

FIG. 1 is a fragmentary perspective view of the siding units shownattached to a building structure.

FIG. 2 is a sectional view of the siding units taken along line 2-2 ofFIG. 1.

DESCRIPTION OF THE PREFERRED EMBODIMENT The preferred embodimentillustrated is not intended to be exhaustive or to limit the inventionto the precise form disclosed. It is chosen and described in order tobest explain the principles of the invention and its application andpractical use to thereby enable others skilled in the art to bestutilize the invention.

Each siding unit 5 includes an outer panel and a cooperating backingboard 12. Outer panel 10 may be formed by extrusion or from sheet blankswhich are shaped by a series of progressing bending or forming dies andmay be of a plastic composition, such as polyvinylchloride, or metalliccomposition, such as aluminum. Backing board 12 is preferably formed ofa rigid material such as insulative fiber board or a honeycombed lightweight plastic.

Outer panel 10 includes an upper marginal portion 14, a face portion 16depending from marginal portion 14, and a butt portion 18 extending fromthe lower edge 20 of face portion 16. Face portion 16 includes anintegral retainer part 24 which extends along upper marginal portion 14.Retainer part 24 preferably comprises a downtumed forwardly projectingdouble-fold extension having an outer run 26 and a spaced inner run 28.A substantially horizontal flange extends rearwardly from the upper edgeof outer run 26 and terminates in a downturned generally vertical lip32. Inner run 28 of retainer part 24 in conjunction with face portion 16defines an inverted channel 34. web 30 and lip 32 in conjunctionwithface portion 16 form a hook means. In other constructions of outer panel11), retainer part 24 may be in the form of a clip such as that shown inFIG. 3 of U. S. Pat. No. 3,485,004.

Butt portion 18 of outer panel 10 includes a web which extendsrearwardly from lower edge 20 of the face portion and which terminatesin an upturned and preferably forwardly inclined lip 42. Lip 42 of thebutt portion is adapted to be inserted upwardly into the retainer partchannel 34 of an overlapped outer panel 10 of a siding unit in theadjacent lower siding course.

Backing board 12 has a front face 36, a rear face 38, an upper edge 43,and a lower preferably parallel edge 45. Rear face 38 of the backingboard terminates spacedly from upper edge 43 to define a lip portion 44at the upper edge of the backing. board. Lip portion 44 is separatedfrom rear face 38 of the backing board by a shoulder 46.

To attach a siding unit of this invention to building structure 48, abacking board 12 is first positioned against structure 48 with its loweredge 45 resting upon web 30 at the upper marginal portion 14 of theouter panel 10 in the lower adjacent siding course. Nails 50, or similarsecurement means, are then driven through backing board 12 and intobuilding structure 48 to anchor the backing board to the buildingstructure. An outer panel 10 is then grasped by the workman with thebutt portion 18 of the panel positioned below retainer part 24 andpreferably against face portion 16 of the outer panel 10 of the sidingunit in the lower adjacent course. The grasped panel is then slidupwardly causing lip 42 of its butt portion to be received withinchannel 34 of retainer part 24 of the outer panel 10 in the loweradjacent siding unit and slidably interlocked with the lower sidingunit. With butt portion 18 of outer panel 10 so interlocked with thelower adjacent siding unit, the upper marginal portion 14 and faceportion 16 of the outer panel is swung rearwardly against backing board12 with lip 32 of the hook means at the upper marginal portion 14 of thepanel being flexed upwardly and snapped downwardly over lip portion 44of the backing board 12. With lip 32 of the outer panel located betweenlip portion 44 of the backing board and outer face 52 of buildingstructure 48, the outer panel can be released as it will remainpositioned against backing board 12. Another backing board 12 can now begrasped and positioned against building structure 48 with its lower edge45 resting upon web 30 of the previously positioned outer panel 10. Thesequence of securing the backing board to the building structure andattaching another panel to the board 12 is repeated as above describeduntil siding of the building structure is completed.

The spacing between face portion 16 at retainer part 24 and lip 32 andthe distance between web 30 and the upper edge of butt portion lip 42 ofeach panel 10 are so related in size to the thickness of lip portion 44and the width respectively of backing board 12 that each panel 10 fitssnugly in position upon its backing board when interlocked with an outerpanel 10 in the lower adjacent course but not so tightly so as toprevent movement of the outer panel relative to its backing board andsuch interlocked outer panel during expansion and contraction of thepanels due to atmospheric changes. Lip 32 of each panel 10 may beslightly outturned at its lower edge to facilitate its fit over lipportion 44 of its backing boardv To further facilitate attachment of thesiding unit of this invention, each backing board may include a lipportion 44 at each of its upper edge 43 and lower edge 45 to enable theworkmen attaching the siding to the building structure to reverse thebacking board as the siding is being fitted for gables and similar areaswhere the siding unit must be shortened. The spacing between shoulder 46and upper edge 43 of each backing board preferably exceeds the width oflip 32 of the outer panel as measured from the lips lower edge to panelweb 30. Lip portion 44 of backing board 12 is spaced sufficiently fromouter surface 52 of the building structure to permit lip 32 of the outerpanel to be fitted over and behind the lip portion as shown in FIG. 2.

It can be seen from the above description that only the backing boardsof the siding units of this invention are nailed to the buildingstructure. This permits the outer panels of the siding units which areslidably interlocked together to expand or contract during use withoutbuckling or distortion. Additionally, each of the outer panels of thesiding units is positioned and held against the building structure byits backing board.

It is to be understood that the invention is not to be limited to thedetails herein given but may be modified within the scope of theappendedclaims.

I claim:

1. A siding unit for a building or like structure comprising an outerpanel and a backing board, said outer panel including spaced uppermarginal and butt portions and a face portion extending between saidupper marginal and butt portions, said upper marginal portion includinga web extending rearwardly of said face portion and terminating in adownturned lip spaced from said face portion, retainer means extendingalong said upper marginal portion, said butt portion extendingrearwardly from the lower edge of said face portion and including anupturned lip, said retainer means receiving in slidable interlockingcooperation the upturned lip of the butt portion ofa said outer panel inthe upper adjacent siding course, said backing board having front andrear faces and upper and lower edges, the rear face of said backingboard terminating spacedly from said upper edge of the backing board todefine a lip portion of reduced thickness at said upper edge, saidbacking board resting upon the web of the upper marginal portion of asaid outer panel in a lower adjacent siding course and having its rearface positioned against said structure and its front face located insubstantially the same plane as the front face of the backing board inthe lower adjacent siding course, the lip portion of said firstmentioned backing board being spaced from said structure, securementmeans connecting said first mentioned backing board only to saidstructure, said first mentioned backing board only contacting said outerpanel in the lower adjacent siding course at said web thereof, saidfirst mentioned outer panel having the upturned lip of its butt portionengaged in interlocking cooperation by the retainer means of said outerpanel in the lower adjacent siding course, the downturned lip of saidfirst mentioned outer panel fitted over and behind the lip portion ofsaid first mentioned backing board with said web of the first mentionedouter panel overlying the upper edge of said first mentioned backingboard, whereby said first mentioned outer panel is retained in positionagainst said structure by said outer panel in the lower adjacent sidingcourse and said first mentioned backing board.

slidably over the lip portion of said backing board.

1. A siding unit for a building or like structure comprising an outerpanel and a backing board, said outer panel including spaced uppermarginal and butt portions and a face portion extending between saidupper marginal and butt portions, said upper marginal portion includinga web extending rearwardly of said face portion and terminating in adownturned lip spaced from said face portion, retainer means extendingalong said upper marginal portion, said butt portion extendingrearwardly from the lower edge of said face portion and including anupturned lip, said retainer means receiving in slidable interlockingcooperation the upturned lip of the butt portion of a said outer panelin the upper adjacent siding course, said backing board having front andrear faces and upper and lower edges, the rear face of said backingboard terminating spacedly from said upper edge of the backing board todefine a lip portion of reduced thickness at said upper edge, saidbacking board resting upon the web of the upper marginal portion of asaid outer panel in a lower adjacent siding course and having its rearface positioned against said structure and its front face located insubstantially the same plane as the front face of the backing board inthe lower adjacent siding course, the lip portion of said firstmentioned backing board being spaced from said structure, securementmeans connecting said first mentioned backing board only to saidstructure, said first mentioned backing board only contacting said outerpanel in the lower adjacent siding course at said web thereof, saidfirst mentioned outer panel having the upturned lip of its butt portionengaged in interlocking cooperation by the retainer means of said outerpanel in the lower adjacent siding course, the downturned lip of saidfirst mentioned outer panel fitted over and behind the lip portion ofsaid first mentioned backing board with said web of the first mentionedouter panel overlying the upper edge of said first mentioned backingboard, whereby said first mentioned outer panel is retained in positionagainst said structure by said outer panel in the lower adjacent sidingcourse and said first mentioned backing board.
 2. The siding unit ofclaim 1 wherein the width of the lip portion of said first mentionedbacking board as measured from the upper edge of said rear face to saidupper edge of the backing board exceeds the width of the downturned lipof said first mentioned outer panel.
 3. The siding unit of claim 1wherein said first mentioned face portion, web and downturned lip ofsaid first mentioned outer panel form a hook means fitting slidably overthe lip portion of said backing board.